To add a new item to your item list, you an use the New Item button found on the View Items screen.
This screen allows you to enter a new item that's not already in your item list.
All required fields are marked with an asterisk (*)
NOTE: The "Name" and "Description" fields are essentially the same thing, but when viewing items, the "Name" field will appear.
Once you've entered in your item's information, click the Save Item button at the top to complete the addition!